Analysis

  • max time kernel
    67s
  • max time network
    100s
  • platform
    windows10_x64
  • resource
    win10
  • submitted
    24-06-2020 15:05

General

  • Target

    Document.pdf.exe

  • Size

    1.6MB

  • MD5

    e5c2661cc7e04e9e4c2085432e8ae062

  • SHA1

    97e9e04ea1a585aeb22fd5765218f535c75b521f

  • SHA256

    1e2fbd7c74b38c43c9ef42fa5d48b8ad50122d2be85ff927de0080d331cb9369

  • SHA512

    5af3fb9b3ed2649ca7511f1e84f4e9695067ea50f1d496461ecd8f985d593863c9fade35be0254be5f4c11b4aecaba0326247c8bffff7317b49a35633d6f5d6c

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.yandex.com
  • Port:
    587
  • Username:
    loginwebs2019@yandex.com
  • Password:
    stanbest123

Signatures

  • Suspicious use of SendNotifyMessage 3 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of FindShellTrayWindow 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • AgentTesla

    Agent Tesla is a remote access tool (RAT) written in visual basic.

Processes

  • C:\Users\Admin\AppData\Local\Temp\Document.pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\Document.pdf.exe"
    1⤵
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    • Suspicious use of SetThreadContext
    • Suspicious use of FindShellTrayWindow
    PID:3536
    • C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
      "C:\\\\Windows\\\\Microsoft.NET\\\\Framework\\\\v2.0.50727\\\\MSBuild.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of AdjustPrivilegeToken
      PID:3800

Network

MITRE ATT&CK Matrix ATT&CK v6

Credential Access

Credentials in Files

3
T1081

Collection

Data from Local System

3
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/3800-0-0x0000000000700000-0x0000000000750000-memory.dmp
    Filesize

    320KB

  • memory/3800-1-0x000000000074AC1E-mapping.dmp